Wearable sensor



FIG. 1 is a top, front perspective view of the design view that comprises my invention;

FIG. 2 is a top view thereof;

FIG. 3 is a left side view thereof, the right side viewing being the same; and,

FIG. 4 is a front view thereof, the rear view being the same. 

CLAIM The ornamental design for a wearable sensor, as shown and described. 